Site cleanup in progress. Source (5).

• The Nike Hercules target tracking radar is installed on the roof of the PAR building, with the radar vans on the ground near the left rear of the PARB. This radar was used to help align the phased array radar.
• Two temporary antenna towers are also installed in front of the PAR antenna wall (one on the left, one on the right). They were also probably used during initial installation, alignment, and testing of the phased array radar.
• The temporary office buildings and parking lot to the left of the PAR building were for the installation and test team. These buildings were removed after activation.